Samsung today announced that the Galaxy S II has achieved 10 million global channel sales, doubling from five million in just eight weeks. This news comes after the company’s U.S. launch with Sprint’s Samsung Epic Touch 4G and the AT&T version, which like T-Mobile have opted not to attach its own branding (not yet, at least). Nonetheless, all Galaxy II handsets are pretty amazing choices just in time for the holidays.

Discussing the company’s recent success, K Shin, president and head of Samsung’s mobile communications business in a release said:

“In just five months the GALAXY S II has seen tremendous growth, reflecting its tremendous popularity with customers around the world, who in selecting the GALAXY S II as their device of choice have driven the device’s strong market position globally.”

The U.S. Galaxy II phones will pack a Super AMOLED Plus display, a 1.2 GHz dual-core processor (Samsung’s Exynos) and a revamped version of Touchwiz UI not officially released in the states. That improved software, with optional enterprise-level security among other things, is layered on top of Android 2.3 (Gingerbread).

Although Samsung’s numbers are impressive, we must keep in mind that channel sales doesn’t equal end-user sales, but this is the industry standard way for all manufacturers to measure its sales. That said, it’ll be interesting to see how the sales numbers do once a couple of months go by with all Galaxy S II variants out on the market.